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  • mysql安装

    1、概述
      mysql为关系型数据库。
    mysql的分支-- mysql (自己本身) -- 2008前后的被SUN收购 SUN之后又被oracle收购
    系统集成--什么都干(- 套解决方案)
    mariadb mysql被收购后,作者为了避免数据库被垄断,作者基于mysql的早期版本开发了mariadb
    percona-server 在欧洲,专门mysql数据库写手册,
    postgre SQL  自己说自己是关系型数据路行业老大的一家公司
    oracle  最流行的数据库
    mssql  微软数据库
    2、mariadb的安装
      (1) 创建用户
    [root@localhost ~]# groupadd mysql
    [root@localhost ~]# useradd -r -g mysql -s /sbin/nologin mysql
      (2)解压并安装
    [root@localhost ~]# tar xf mariadb-5.5.65-linux-systemd-x86_64.gz
    [root@localhost ~]# mv mariadb-5.5.65-linux-systemd-x86_64 /usr/local/mysql
      (3)编辑my.cnf文件
        
    [root@localhost mysql]# cp support-files/my-small.cnf /etc/my.cnf
    cp: overwrite ‘/etc/my.cnf’? y
    [root@localhost mysql]# vim /etc/my.cnf
      [mysqld]   port = 3306   socket = /tmp/mysql.sock   
    skip-external-locking   key_buffer_size = 16K   
    max_allowed_packet = 1M   table_open_cache = 4   
    sort_buffer_size = 64K   read_buffer_size = 256K   
    read_rnd_buffer_size = 256K   net_buffer_length = 2K   
    thread_stack = 240K   basedir = /usr/local/mysql   
    datadir = /usr/local/mysql/data   
    innodb_file_per_table=on   skip_name_resolve = on
    #给mysql用户权限
    [root@localhost mysql]# chown -R mysql.mysql /usr/local/mysql/
    [root@localhost mysql]# chmod -R 755 /usr/local/mysql/
     初始化mysql
    [root@localhost mysql]# /usr/local/mysql/scripts/mysql_install_db --user=mysql
    Installing MariaDB/MySQL system tables in '/usr/local/mysql/data' ... 190910 12:38:06 [Note] /usr/local/mysql/bin/mysqld (mysqld 5.5.65-MariaDB) starting as process 12547 ... OK Filling help tables... 190910 12:38:06 [Note] /usr/local/mysql/bin/mysqld (mysqld 5.5.65-MariaDB) starting as process 12556 ... OK
     将mysql服务添加到init.d中
    [root@localhost mysql]# cd support-files/
    [root@localhost support-files]# cp -a mysql.server /etc/init.d/mysqld
    启动mysql
    [root@localhost support-files]# /etc/init.d/mysqld start Starting MariaDB.190910 12:40:15 mysqld_safe Logging to '/usr/local/mysql/data/localhost.localdomain.err'. 190910 12:40:15 mysqld_safe Starting mysqld daemon with databases from /usr/local/mysql/data . SUCCESS!
    添加MySQL到PATH的环境变量里。
    [root@toydns mysql]# vi /etc/profile.d/mysql.sh
    export PATH=/usr/local/mysql/bin:$PATH
    source /etc/profile.d/mysql.sh  使这个配置文件及时生效
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  • 原文地址:https://www.cnblogs.com/wangshilin/p/11506062.html
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